Arsenic
For Arsenic, regulator is US EPA (National Primary Drinking Water Regulations); limit is 0.010 as of 01/23/06; unit is mg/L; limit type is MCL (Maximum Contaminant Level), recorded from its source on 2026-08-06; source re-checked 2026-09-16.
- Contaminant
- Arsenic verified
- Regulator
- US EPA (National Primary Drinking Water Regulations) our reading
- Limit
- 0.010 as of 01/23/06 verified
- Unit
- mg/L verified
- Limit type
- MCL (Maximum Contaminant Level) our reading
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What the source says
MCL or TT 1 (mg/L) 2 | Potential Health Effects from Long-Term Exposure Above the MCL (unless specified as short-term) | Sources of Contaminant in Drinking Water | Antimony | 0.006 | 0.006 | Increase in blood cholesterol; decrease in blood sugar | Discharge from petroleum refineries; fire retardants; ceramics; electronics; solder | Arsenic <http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=300065YM.txt> Quick reference guide <http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=60000E1E.txt> Consumer fact sheet | 0 | 0.010 as of 01/23/06 |
— epa.gov, retrieved 2026-08-06
Source
- epa.govhttps://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations